Pentair Air Relief Valve Assembly

The Pentair High Flow Manual Air Relief Valve Assembly (Part #98209800 or #98209803Z) is a vital safety and maintenance component designed for a broad range of Pentair filtration systems, including the FNS Plus D.E., Clean & Clear, Clean & Clear Plus, Predator, and Warrior filter series. Threaded directly into the apex dome of the filter tank lid, this heavy-duty thermoplastic assembly serves as the primary system vent. It features a manual twist-turn valve lever that allows pool operators to safely exhaust trapped internal air when initializing the pool pump, preventing dangerous, high-pressure air pockets from fracturing the tank. The comprehensive assembly package typically comes pre-equipped with an airtight synthetic rubber tank O-ring, a protective rubber weather boot, and a built-in mechanical pressure gauge that displays real-time system performance metrics from 0 to 60 psi.

As a compact assembly combining lightweight structural plastic and a small analog pressure gauge, it features a minimal footprint and a low physical weight profile:

• Actual Product Weight: Approximately 0.30 to 0.45 pounds (roughly 4.8 to 7.2 ounces).

• Packaged Shipping Weight: Typically scales at 0.60 to 0.95 pounds due to the protective cardboard box insulation required to shield the glass face of the pressure gauge during transit.